BCM Buffer System : Tube, Spring, Endplate, Detent

This guide, presented by School of the American Rifle, details how to identify and replace a malformed weld spring in an AR-15 Delta Ring assembly. A misaligned weld spring can cause the gas tube to be pushed off-center, leading to excessive friction or damage to the carrier key and gas tube. Replacing the faulty component ensures proper gas tube alignment and firearm reliability.

This YouTube video focuses on a common and crucial aspect of firearm ownership: the buffer system. The title, "What buffer system do you use?", directly asks for viewer input on their preferred buffer systems. While the description is empty, the title alone indicates a discussion or inquiry into different buffer systems, which are vital components for the reliable operation of firearms, particularly semi-automatic rifles like the AR-15 platform. Viewers interested in firearm maintenance, customization, or performance optimization would find this content relevant.

This YouTube video offers practical tips and techniques for polishing stainless steel firearm components. The content focuses on achieving a high-quality finish on gun parts, likely aimed at gunsmiths, hobbyists, and firearm enthusiasts looking to customize or maintain their weapons. The video emphasizes real-world application and likely demonstrates various methods and tools used in the polishing process for stainless steel firearms.

This video demonstrates the cleaning and restoration of a heavily fouled Daniel Defense Bolt Carrier Group (BCG) using the Tactical Elites gun cleaning kit. It covers step-by-step disassembly, thorough scrubbing to remove carbon buildup, and meticulous reassembly. The process highlights the importance of proper firearm maintenance for preserving component integrity and functionality, showcasing the effectiveness of the cleaning kit.

This video from AT3 Tactical explores the function and necessity of the forward assist on AR-15 style firearms. It delves into the component's historical origins, specifically its introduction during the Vietnam War era, and examines its practical applications and potential drawbacks on modern rifles. The content aims to educate viewers, whether they are new to building or modifying AR-15s, to make an informed decision about the forward assist's role in their firearm setup. The video also touches on specific drills and potential problems associated with the component.

Fighting rifles are often intentionally overgassed for reliability but can become problematic when suppressed due to increased back pressure. This leads to excessive gas blowback, making the rifle uncomfortable and potentially damaging components. A cost-effective solution is upgrading to a heavier buffer spring, such as a Sprinco Red or Red/White, to better manage bolt velocity and mitigate these issues.

This video provides a detailed guide on installing a Trijicon RCR red dot sight onto a Glock 17, specifically addressing MOS slides. It emphasizes safety checks, proper disassembly, and the correct use of adapter plates and torque specifications (13 inch-pounds) for secure mounting. The guide also covers reassembly and a final visual check of the optic.

This guide details the installation of a Leupold Delta Point Pro red dot sight on a Glock 17 MOS. It emphasizes proper disassembly, using specific adapter plates like Forward Controls, and applying thread locker with precise torque values (13 inch-lbs for the plate, 25 inch-lbs for the optic). The process also includes installing a rear iron sight for co-witnessing capabilities.

This video demonstrates the ghost loading technique for the Beretta 1301 Tactical (Mod 1 & 2) to achieve a 9-round capacity (1+1+7). It details the process of loading the magazine tube, manipulating the bolt release, and carefully placing an extra round onto the lifter, especially with the Pro Lifter accessory. The technique allows for a faster follow-up shot by having a round already positioned for chambering.

This video provides a beginner-friendly guide to using a laser bore sighter for initial optic zeroing. It highlights the MidTen 9mm Red Laser Bore Sighter as an affordable tool, demonstrating its setup and use on a Glock 17 Gen 5. The process involves placing a target at 10-25 yards, ensuring the firearm is unloaded, and aligning the optic's reticle with the laser before range verification.